EP0389871A2 - Dispositif pour actionner une ébarbeuse - Google Patents

Dispositif pour actionner une ébarbeuse Download PDF

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Publication number
EP0389871A2
EP0389871A2 EP90104858A EP90104858A EP0389871A2 EP 0389871 A2 EP0389871 A2 EP 0389871A2 EP 90104858 A EP90104858 A EP 90104858A EP 90104858 A EP90104858 A EP 90104858A EP 0389871 A2 EP0389871 A2 EP 0389871A2
Authority
EP
European Patent Office
Prior art keywords
grinding
cutting disc
cast
workpiece
machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90104858A
Other languages
German (de)
English (en)
Other versions
EP0389871B1 (fr
EP0389871A3 (fr
Inventor
Werner Lüber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0389871A2 publication Critical patent/EP0389871A2/fr
Publication of EP0389871A3 publication Critical patent/EP0389871A3/fr
Application granted granted Critical
Publication of EP0389871B1 publication Critical patent/EP0389871B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/10—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/16—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor
    • Y10T408/17—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor to control infeed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306664—Milling including means to infeed rotary cutter toward work
    • Y10T409/307224—Milling including means to infeed rotary cutter toward work with infeed control means energized in response to activator stimulated by condition sensor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/141—With means to monitor and control operation [e.g., self-regulating means]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/849—With signal, scale, or indicator
    • Y10T83/853—Indicates tool position
    • Y10T83/855—Relative to another element

Definitions

  • the present invention relates to a method for controlling an automatic cast cleaning machine, in particular cast cleaning machine, in which a grinding or cutting disc is placed against a clamped cast workpiece and then at least the working feed of the grinding or cutting disc is program-controlled by means of workpiece-dependent control data.
  • the noises or fibrations that occur when the workpiece is touched by the grinding tool are used to switch from infeed speed to working speed, respectively. used as a start signal for a programmed control system, with corresponding electrical control signals being obtained via vibration meters and frequency converters.
  • the object of the present invention is therefore to create a method of the aforementioned type, in which a pre-signal necessary and suitable for a precise introduction of the programmed machining process can be generated, regardless of the material of the cast workpieces.
  • a control signal can be generated, which takes effect before a contact between the grinding or cutting disc and the cast workpiece and thus initiates a precise program-controlled machining of the cast workpiece, regardless of fibrations. It is also irrelevant which material the workpiece is made of.
  • the proximity distance between the grinding or cutting disc and the cast workpiece can itself be monitored by a light barrier or a laser beam in order to generate an electrical control signal at a given approximation, but this is due to external influences such as clouding of the optics, machine vibrations and the like. The like. Is not always sufficiently precise. However, it would be advantageous here to retrofit existing machines without undue effort.
  • a further improvement in the quality of cast part processing by means of a grinding or cutting disc requires that the unstable behavior of all parts of the casting cleaning machine that are in motion is eliminated. This can be achieved in that the control signal initiates a program-controlled linear working feed of the grinding or cutting wheel and at the same time brings all other actuating means of the cast-iron grinding machine into a rigid connection state.
  • the present invention further relates to an automatic cast cleaning machine with a clamping device, adjustable against one another and together, for a machine stand carrying a cast workpiece to be machined, and with a tool holder carrying a grinding and / or cutting disc, which is supported on a machine stand by carriage means on the cast workpiece.
  • this cast plaster grinding machine is characterized in that the clamping means against the machine stand are electrically isolated and the grinding and / or cutting disc against the tool holder is electrical via insulating means are trically isolated; that the grinding and / or cutting disc is electrically conductive; and that the grinding and / or cutting disc and the clamping means, respectively.
  • the cast workpiece clamped between them are connected in series with a controllable high-voltage generator and an ignition current evaluation circuit providing a control signal.
  • Locking means centrally controllable and lockable hydraulic servomotors. Hydraulic cylinder.
  • the present invention relates to a grinding or cutting disc for carrying out the method, which is characterized by an electrically conductive design over the entire extent of the disc.
  • the automatic cast plaster grinding machine for processing a cast workpiece 1 comprises a machine stand 10, on which vertical, horizontal and mutually movable clamping means 5 and 6 for the cast workpiece 1 are supported.
  • the actuating means are preferably hydraulic cylinders 42, 42 ', 43 and 44, which are operatively connected to a controllable hydraulic control 50 via corresponding feed lines.
  • a tool holder 3 which carries a grinding and / or cutting disc 2, is supported on a machine frame 11 by slide means 4 on the cast workpiece 1.
  • a motor or, as shown, a hydraulic cylinder 40 can effect the feed.
  • the tool holder 3 can additionally be arranged on the slide means 4 for a transverse feed, which then, as indicated, is effected by a further hydraulic cylinder 45.
  • hydraulic or electric servomotors are also conceivable.
  • the actuating means on the machine frame 11 are also operatively connected to the hydraulic control 50 mentioned. This can also be provided for the drive motor 41 of the grinding or cutting disc 2.
  • the cast workpiece 1 clamped between them is connected in series with a controllable high-voltage generator 20 and an ignition current evaluation circuit 21 which supplies the control signal 22.
  • This circuit also includes a control stage 26 connected to the high-voltage generator 20.
  • the output signal 22 then arrives at a CNC control system or the like, which in turn controls the hydraulic control 50 by means of control signals 25 and is also fed back by means of a release signal 24.
  • the output voltage at the high-voltage generator 20 can be 1,000 to 20,000 volts, whereas the limited ignition current should not exceed 0.1 mA.
  • the output signal 22 of the ignition current evaluation circuit 21 has approximately 24 volts.
  • the grinding or cutting disc 2 over its whole Expansion have an electrically conductive design, for example by inclusion of graphite in the grinding wheel or by introducing or applying copper mesh or braid.
  • a controllable high-voltage potential is thus built up between the grinding or cutting disc 2 and the cast workpiece 1, the level of the voltage and the size of the air gap 30 forming the flashover gap between the disc and the workpiece being a precise measure of the ignition voltage causing the electrical control signal 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
EP19900104858 1989-03-29 1990-03-15 Dispositif pour actionner une ébarbeuse Expired - Lifetime EP0389871B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1129/89 1989-03-29
CH1129/89A CH678292A5 (fr) 1989-03-29 1989-03-29

Publications (3)

Publication Number Publication Date
EP0389871A2 true EP0389871A2 (fr) 1990-10-03
EP0389871A3 EP0389871A3 (fr) 1991-02-06
EP0389871B1 EP0389871B1 (fr) 1994-09-14

Family

ID=4203170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900104858 Expired - Lifetime EP0389871B1 (fr) 1989-03-29 1990-03-15 Dispositif pour actionner une ébarbeuse

Country Status (6)

Country Link
US (1) US5079874A (fr)
EP (1) EP0389871B1 (fr)
AT (1) ATE111389T1 (fr)
CH (1) CH678292A5 (fr)
DE (1) DE59007098D1 (fr)
ES (1) ES2060837T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105290937A (zh) * 2015-11-09 2016-02-03 芜湖天金机械有限公司 万向节驱动轴在线除锈抛光上蜡装置及工艺方法
CN105382668A (zh) * 2015-12-18 2016-03-09 国家电网公司 钢管除锈装置
CN107971881A (zh) * 2017-12-06 2018-05-01 王丽 一种用于汽车整车制造的汽车零件抛光装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1055884C (zh) * 1993-12-16 2000-08-30 太原市恒山机械厂 微机控制磨削钢坯的方法和设备
JP3022387B2 (ja) * 1997-03-27 2000-03-21 三ツ星ベルト株式会社 ベルトスリーブ材の幅切断装置
US20030196528A1 (en) * 2002-04-19 2003-10-23 Cooper Christopher W. Compliant cutoff saw assembly
CN108436716A (zh) * 2018-03-16 2018-08-24 郭考香 一种地埋式垃圾压缩箱环保处理机
CN108326704B (zh) * 2018-04-09 2020-01-31 烟台世德装备股份有限公司 圆柱形铸件表面打磨装置
CN109719625B (zh) * 2019-02-27 2021-07-06 库卡机器人制造（上海）有限公司 力控装置及机器人
CN111823066B (zh) * 2020-07-24 2021-05-18 江西晖旭实业有限公司 一种铸造件浇注成型后表面精加工处理系统及处理工艺
CN113427346B (zh) * 2021-07-15 2022-02-18 安徽新境界自动化技术有限公司 一种面向铸铁件的打磨加工工艺

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667165A (en) * 1971-02-16 1972-06-06 G & B Automated Equipment Ltd Conditioning grinder
JPS5216837B2 (fr) * 1973-07-17 1977-05-11
CH571931A5 (fr) * 1974-06-08 1976-01-30 Movomatic Sa
CH651491A5 (de) * 1980-12-23 1985-09-30 Maag Zahnraeder & Maschinen Ag Vorrichtung zum positionieren einer schleifscheibe.
DE3717568A1 (de) * 1987-05-25 1988-12-08 Lach Spezial Werkzeuge Gmbh Verfahren und vorrichtung zum mechanischen schleifen von werkstuecken mittels elektrisch leitfaehiger schleifwerkzeuge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105290937A (zh) * 2015-11-09 2016-02-03 芜湖天金机械有限公司 万向节驱动轴在线除锈抛光上蜡装置及工艺方法
CN105382668A (zh) * 2015-12-18 2016-03-09 国家电网公司 钢管除锈装置
CN107971881A (zh) * 2017-12-06 2018-05-01 王丽 一种用于汽车整车制造的汽车零件抛光装置

Also Published As

Publication number Publication date
EP0389871B1 (fr) 1994-09-14
ES2060837T3 (es) 1994-12-01
DE59007098D1 (de) 1994-10-20
EP0389871A3 (fr) 1991-02-06
CH678292A5 (fr) 1991-08-30
US5079874A (en) 1992-01-14
ATE111389T1 (de) 1994-09-15

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